import { NextResponse } from 'next/server';
import { assertChannelRoomAccess } from '@/lib/auth/room-access';
import { addDice, getRoom, notifyRoom, toPublicRoom } from '@/lib/rooms/store';

export const runtime = 'nodejs';

type Params = { params: Promise<{ roomId: string }> };

export async function POST(request: Request, { params }: Params) {
  const { roomId } = await params;
  const room = getRoom(roomId);
  if (!room) {
    return NextResponse.json({ error: '방을 찾을 수 없습니다.' }, { status: 404 });
  }

  const access = await assertChannelRoomAccess(room, request);
  if (!access.ok) return access.response;

  const body = (await request.json().catch(() => ({}))) as { count?: number };
  const count = Number(body.count ?? 1);
  if (!Number.isFinite(count) || count < 1) {
    return NextResponse.json({ error: 'count는 1 이상이어야 합니다.' }, { status: 400 });
  }

  const updated = addDice(roomId, count);
  if (!updated) {
    return NextResponse.json({ error: '처리 실패' }, { status: 500 });
  }
  notifyRoom(roomId);
  return NextResponse.json({ room: toPublicRoom(updated) });
}